Aggregation of Dissociated Sponge Cells and Species Specifific Sorting

Synopsis: Species specific reaggregation in dissociated sponge cells is shown in two species of sponges, ‘Haliclona occulata’ and ‘Microciona prolifera’. The dissociated cells appear to move randomly by the extension of pseudopods. Once a collision occurs, the cells remain together. When the dissociated cells of the two species combine, movement and collision remain random, but only cells of like species remain together and form aggregates. Not all combinations of two species of sponges demonstrate completely species specific reaggregation in this manner.
Language: English
Country: United States
Medium: Film; Film. 16mm. sd. col. 8 min.
Technical information: Black-and-white / Sound
Year of production: 1972
Availability: Hire
Uses: Courses in biology or zoology, especially in cell and developmental biology.
Subjects: Biology
Keywords: cells; invertebrate animals; marine animals; sponges

Name: Developmental Biology Film Program of the Education Development Center

Name: Higher Education Film & Video Library
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Address: c/o British Universities Film & Video Council
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Notes: Catalogue available from British Universities Film & Video Council.

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